- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Sounds to me like there is bad solder somewhere on the filament supply circuit. Do you know what a cold solder joint looks like? It is a solder joint that is not making a good mechanical or electrical connection. When you lose that connection the filament inside the tube slowly stops heating the electron guns and the picture will fade away. When the connection comes back the video will come back.
Might be worth it to take the back off and check out the little board that is connected to the end of the tube. The problem is either there or on the power supply.
Shouldn't be a problem for a repair tech. I would not spend very much money though.
sounds like you might have an auto overvoltage shutdown circuit kicking in. The hivoltage goes to high and the monitoring circuit auto shuts down. More than likely trouble is in hivoltage circuitry. If you have a transformer that will allow you to bring up the set slowly without shutting down and you can look to see what's happening.
The problem that is happening is due to the shutdown circuit activating, which is an indication of excessive current flow. This may indicate a problem in the High Voltage section or in the power supply feed from the HV section. In any case this problem is best dealt with by a trained professional. I would suggest that you take the TV to a qualified TV repair person and have them check it out.
I hope this helps
You must have the tv on standby, that is why when you try to switch on decoder/dvd player.
Most common fault on a Thomson tv would be dry joints (bad soldering) mainly around hot and high voltage parts, eg transformers and high voltage transistors.
Unless you are into electronics field, know the safety procedures and have good soldering iron, take to a repair shop.